He'd need to check very carefully that the compatability codes for the DLC matches the one on the spine of his game box. But generally speaking, DLC from one region doesn't usually work with a game from another, as DLC tends to be region-locked.

He'd need to check very carefully that the compatability codes for the DLC matches the one on the spine of his game box. But generally speaking, DLC from one region doesn't usually work with a game from another, as DLC tends to be region-locked.